Multi-Layer Scenarios

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Presentation transcript:

Multi-Layer Scenarios Andrea Mazzini, Nokia April 16, 2019

Purpose of this contribution This contribution provides a synthesis of the various multi-layer scenarios presented in otcc2018.AM.003-Multilayer_Termination-22nov.pptx (AM, KS). Purpose is to share and possibly consolidate how to model more common use cases / scenarios, allowing a TAPI agent to consistently represent network multi-layer forwarding capabilities. The examples consider the transport of Ethernet/DSR services over OTN ODU/OTSi infrastructure, nevertheless the approach should be valid for other connection-oriented networking technologies. The scenarios are based on equipment view, i.e. most of the shown nodes have a scope on a piece of eqp like Transponder and ROADM.

NEP Pools NEP Pools can be built according to the following criteria: Pool of NEPs with equivalent transmission features Further refined according to topological equivalence UNI NEP Pools (NEP not ending link) Single Layer Can support SIPs for the provisioning of “CTP rate” ConnectivityServices Supports flexibility at TTP=CTP rate Multi-rate/layer The terminated layers end trails towards UNI, not explicitly modeled Internal NEP Pools (NEP not ending link) Single Layer Not applicable Multi-rate/layer Can support SIPs for the provisioning of “TTP rate” ConnectivityServices Can support SIPs for all the terminated layers Cannot support SIPs for the provisioning of “CTP rate” ConnectivityServices NNI NEP Pools (NEP ending Link) Single Layer Cannot support SIPs Supports flexibility at TTP=CTP rate Multi-rate/layer Can support SIPs for the provisioning of “TTP rate” ConnectivityServices Can support SIPs for all the terminated layers Cannot support SIPs for the provisioning of “CTP rate” ConnectivityServices Transitional Link NEP Pools The “supported flexibility” lists the rates where flexibility is supported. Client NEP can support SIPs (related to TTPs) only if Multi-layer Server NEP can support SIP at its base TTP, plus other SIPs (related to other TTPs) only if Multi-layer

NEP Attributes NodeEdgePoint pool: Boolean [1] (default: false) _aggregatedNodeEdgePoint: NodeEdgePoint [*] layerProtocolName: LayerProtocolName NepBaseLayerProtocolQualifier: LayerProtocolQualifier [1] Layer=ODU4 (TTP rate) _capacity: CapacityPac [1] Total Capacity=400G availableCepLayerProtocol: NepLayerProtocolCapability [1..*] Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP per TTP instances=10, 10, 2 maxNepInThePool: positiveInteger [1] (default: 1) Max # TTP instances=4 Examples If pool = false, then Only one NepLayerProtocolCapability instance maxNepInThePool=1 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 availableCepLayerProtocol: there can be cases where specifying only the “leaves” (CTP rates) may not be sufficient, e.g. when different structures can eventually support same leaves. Hence better define a “list of lists” type. E.g. {ODU4; [ODU0; ODU1; ODU2; ODU2e; ODU3]}; {ODU4; [ODU3; (ODU0; ODU1; ODU2; ODU2e)]; [ODU2; (ODU0; ODU1)]; [ODU2; (ODU1; <ODU0>)]} Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Pool = yes Layer=ODU2 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2 Max # TTP instances=4 Max # CTP per TTP instances=10

Node Rule Group Attributes Add supportedTransition: SupportedTransition [*] SupportedTransition: couple of LayerProtocolQualifier Add ”LAYER_TRANSITION” Example NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e),(40GigE,ODU3), (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3)

LayerProtocolTransitionPac Attributes Replace transitionedLayerProtocolName with supportedTransition: SupportedTransition [1] SupportedTransition: couple of LayerProtocolQualifier Add SupportedFlexibility: SupportedFlexibility [1] SupportedFlexibility: LayerProtocolQualifier [0..2] The listed Layer Protocol Qualifiers must be consistent with supportedTransition listed Qualifiers. Example TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi, ODU4

“client” NEPs (1/2) Multi-rate/layer NEP (Pool) supports one or more NEPs which are not “ending any node”, or better are ending the nodes which are encapsulated in the multi-rate/layer node. Do we really need them? In fact, the signal processing and forwarding capabilities are fully described by NEP pool or “bottom most NEP” in case of no pool. OTSi ODU4 ODU Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 K H Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 ODU2 Link C OTSi Connectivity Service D ODU4 Connectivity Service NNI SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case)

“client” NEPs (2/2) NNI Do we really need them? Yes! In this scenario, this link is NOT redundant In this scenario, this link is redundant Link ODU2 ODU4 ODU ODU4 ODU4 ODU Link ODU OTSi OTSi OTSi OTSi Link OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 OTSi OTSi SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case) Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Partitioning All nodes are single layer and rate ODU4 Node at higher partitioning level External NEPs, which have a SIP, and/or end a Link Layer A Layer A Y X Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP Layer ODU Rate ODU4 Single layer NEP Pool, aggregates “ports” with uniform capabilities. NodeRuleGroup RuleType: FORWARDING NEP list Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

Partitioning All nodes are single layer and rate NEP Pools and Links (1/2) ODU4 Node at higher partitioning level External NEPs, which have a SIP, and/or end a Link Layer A Layer A Y X Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 NODE 2 Link NODE 1 Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP Layer ODU Rate ODU4 On Node 1, there is only one NEP which Link ends on a NEP of Node 2. On Node 2, the NEP Pool is present because it aggregates NEP with equivalent transmission features. This NEP Pool does not end a Link Pool. Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

Partitioning All nodes are single layer and rate NEP Pools and Links (2/2) ODU4 Node at higher partitioning level External NEPs, which have a SIP, and/or end a Link Layer A Layer A Y X Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 Layer A Rate A1 NODE 2 Link NODE 1 Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP Layer ODU Rate ODU4 Layer ODU Rate ODU4 Link In this case the NEP Pool is present on both Nodes, because it aggregates NEP with equivalent transmission features plus topological equivalence. This NEP Pool ends a Link Pool. Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

Layering All nodes are single layer and rate, Transitional Link External NEPs, which have a SIP, and/or end a Link Layer B Layer A Y X Layer A Rate A1 Layer A Rate A1 Layer B Rate B1 Layer B Rate B1 Transitional Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP NodeRuleGroup RuleType: FORWARDING NEP list TransitionalLink NEP client, NEP server Supported Transitions=(A1, B1) Supported Flexibility=A1, B1 Pool = yes Layer=ODU2 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2 Max # TTP instances=4 Max # CTP per TTP instances=10 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

Layering All nodes are single layer and rate, Transitional Link ODU2 Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 ODU4 Defined in an ODU2 Node at higher partitioning level Defined in an ODU4 Node at higher partitioning level ODU2 ODU2 ODU ODU ODU4 ODU4 X Link Layer ODU Rate ODU2 ODU Transitional Link Layer ODU Rate ODU2 Layer ODU Rate ODU4 SIP for the provisioning of ODU2 ConnectivityService SIP for the provisioning of ODU4 ConnectivityService Z TransitionalLink NEP client, NEP server Supported Transitions=(ODU4, ODU2) Supported Flexibility=ODU4, ODU2 Layer ODU Rate ODU4

Layering All nodes are single layer and rate, Transitional Link ODU2 Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 Defined in an ODU2 Node at higher partitioning level ODU2 ODU2 ODU ODU ODU4 ODU4 ODU4 X ODU Layer ODU Rate ODU2 Transitional Link Layer ODU Rate ODU2 Layer ODU Rate ODU4 Y Layer ODU Rate ODU4 SIP for the provisioning of ODU2 ConnectivityService SIPs for the provisioning of ODU4 ConnectivityService SIP for the provisioning of ODU4 ConnectivityService Z TransitionalLink NEP client, NEP server Supported Transitions=(ODU4, ODU2) Supported Flexibility=ODU4, ODU2 Layer ODU Rate ODU4

Layering Transitional Link ≈ Internal NEP Pool Multi-layer node with “internal” NEP Pool modeling layer transition Single-layer nodes with Transitional Link modeling layer transition between them ODU2 ODU2 ODU ODU4 ODU ODU4 ODU Transitional Link Layer ODU Rate ODU2 Layer ODU Rate ODU4 ODU If NEP Pool is “Multi-layer”, it can support SIPs related to TTPs Layer ODU Rate ODU4 If NEP Pool is “Multi-layer”, it can support SIPs related to TTPs Z Z Layer ODU Rate ODU4 SIP for the provisioning of ODU4 ConnectivityService TransitionalLink NEP client, NEP server Supported Transitions=(ODU4, ODU2) Supported Flexibility=ODU4, ODU2 SIP for the provisioning of ODU4 ConnectivityService Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Multi-rate, Multi-layer Nodes, Single-layer flexibility External NEPs, which have a SIP, and/or end a Link Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Layer B Layer A Y X Layer A Rate A1 Layer A Rate A2 Layer A Rate A2 Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 Layer B Rate B1 Link Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP ODU4 Supported Transitions=(ODU4,ODU2) Layer ODU Rate ODU4 Layer ODU Rate ODU4 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 Multi-layer/rate NEP Pool, aggregates “ports” with uniform capabilities. Single-layer/rate NEP Pool, aggregates “ports” with uniform capabilities.

Multi-rate, Multi-layer Nodes, Single-layer flexibility ODU2 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 ODU4 Layer B Layer A Y ODU2 X ODU Layer A Rate A1 ODU4 Layer B Rate B1 Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 Link Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP Layer ODU Rate ODU4 Layer ODU Rate ODU4 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP ODU4 Supported Transitions=(ODU4,ODU2) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 SIP for the provisioning of ODU4 ConnectivityService Z Layer ODU Rate ODU4

Multi-rate, Multi-layer Nodes, Single-layer flexibility SIP for the provisioning of OTSi ConnectivityService, not allowed in case of no Link (UNI case) ODU2 ODU4 Layer A ODU2 ODU4 ODU4 OTSi X ODU OTSi ODU Y Layer A Rate A1 ODU4 OTSi Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 Link Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP Layer ODU Rate ODU4 Layer ODU Rate ODU4 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP ODU4 Supported Transitions=(ODU4,ODU2) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Layer=OTSi (TTP rate) Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 SIP for the provisioning of ODU4 ConnectivityService Z Layer ODU Rate ODU4

Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool ODU4 ODU4 ODU Y1, Y2 are SIPs for the provisioning of OTSi ConnectivityService, not terminated in the managed domain, as there is no further Link (UNI case) OTSi OTSi Link OTSi Layer ODU Rate ODU4 Y2 Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP OTSi Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 OTSi OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Y1 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) NodeRuleGroup RuleType: FORWARDING NEP OTSi (int.), NEP OTSi

Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool OTSi ODU4 ODU4 ODU OTSi OTSi Link Link Layer ODU Rate ODU4 Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP OTSi OTSi Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Y Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) NodeRuleGroup RuleType: FORWARDING NEP OTSi (int.), NEP OTSi

Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool ODU2 ODU4 Layer A ODU2 ODU2 X ODU Layer A Rate A1 Layer=ODU2 Total Capacity=10G Supported CTP Rates= ODU2 Max # CTP instances=1 ODU4 ODU4 Link Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP ODU4 Supported Transitions=(ODU4,ODU2) ODU (Internal) Layer ODU Rate ODU4 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: FORWARDING NEP ODU4 (int), ODU4 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 SIP for the provisioning of ODU4 ConnectivityService Z ODU (Internal)

Multi-rate, Multi-layer Nodes, Multi-layer flexibility - Internal NEP Pool Case ODU4 UNI NEP Layer A ODU X Layer A Rate A1 ODU4 ODU4 ODU4 Link Layer=ODU4 Total Capacity=100G Supported CTP Rates= ODU2 Max # CTP instances=10 Node NodeEdgePoint Device ConnectivityServiceEndPoint X ServiceInterfacePoint ConnectivityService Connection Link Transitional Link ConnectionEndPoint A CTP and CTP CTP and TTP TTP CTP ODU (Internal) Layer ODU Rate ODU4 NodeRuleGroup RuleType: FORWARDING NEP ODU4 (int), ODU4 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 NodeRuleGroup RuleType: FORWARDING NEP ODU4 (int), ODU4 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 SIP for the provisioning of ODU4 ConnectivityService Z ODU (Internal)

SIP at UNI, UNI Single-layer NEP Pool, Ethernet ETH 10G Connectivity Service ETH 10G B ETH 10G ETH ETH CTP ETH CTP Y ETH Layer=ETH Total Capacity=40G Supported CTP Rates= 10G Max # CTP instances=4 Pool = yes Layer=ETH Total Capacity=400G Supported CTP Rates= ETH Max # TTP instances=10 Max # CTP per TTP instances=4

ODU1 Connectivity Service SIP at UNI, UNI Single-layer NEP Pool, ODU1 UNI ODU1 Connectivity Service ODU1 C ODU1 K ODU ODU1 ODU1 Layer=ODU Total Capacity=2.5G Supported CTP Rates= ODU1 Max # CTP instances=1 Pool = yes Layer=ODU1 (TTP rate) Total Capacity=25G Supported CTP Rates= ODU1 Max # TTP instances=10 Max # CTP per TTP instances=1

SIP at UNI, UNI Multi-layer NEP Pool ODU4 Connectivity Service D ODU4 ODU4 H ODU ODU OTSi OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 SIP for the provisioning of OTSi ConnectivityService is not allowed in case of no Link (UNI case) OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

SIP at UNI, UNI Multi-layer NEP Pool ODU2 Connectivity Service UNI E ODU2 ODU2 J ODU ODU4 J1 ODU J1, J2, J3, J4 SIPs can be optionally shown in case it is offered also the capability to select exact NEP. OTSi OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 SIP for the provisioning of OTSi/ODU4 ConnectivityService is not allowed in case of no Link (UNI case) OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

ODU1 Connectivity Service SIP at NNI, NNI Single-layer NEP Pool Not applicable The ODU connection cannot end at NNI side ODU1 Connectivity Service NNI C ODU1 ODU1 ODU1 ODU K ODU1 Link Layer=ODU Total Capacity=2.5G Supported CTP Rates= ODU1 Max # CTP instances=1 Pool = yes Layer=ODU1 (TTP rate) Total Capacity=25G Supported CTP Rates= ODU1 Max # TTP instances=10 Max # CTP per TTP instances=1

SIP at NNI, NNI Multi-layer NEP Pool OTSi Connectivity Service C OTSi ODU4 ODU K OTSi OTSi Link OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 OTSi SIP for the provisioning of ODU4 ConnectivityService is not allowed in case of Link (NNI case) Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

SIP at NNI, NNI Multi-layer NEP Pool ODU4 ODU2 ODU4 Connectivity Service ODU OTSi D ODU4 H ODU ODU OTSi Connectivity Service C OTSi OTSi K OTSi Link Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 OTSi SIP for the provisioning of ODU2 ConnectivityService is not allowed in case of Link (NNI case) Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Internal Multi-layer NEP Pool ODU4 ODU2 ODU4 Connectivity Service D H ODU ODU4 OTSi ODU OTSi OTSi Connectivity Service C OTSi K OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 OTSi Can be related to a same layer NEP (forwarding rule) Available flexibility at most server layer Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Available flexibility at most client layer Can be related to a client layer NEP (layer transition rule)

Internal Multi-layer NEP Pool ETH ETH ETH ETH ODU1 ODU NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ETH Server NEP ODU2 Supported Transitions= (ODU2,ODU1),(ODU1,ETH) ODU2 ODU2 ODU2 ODU4 ODU ODU2 Pool = yes Layer=ODU2 (TTP rate) Total Capacity=100G Supported CTP Rates= ETH Max # TTP instances=10 Max # CTP per TTP instances=4 OTSi OTSi Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # CTP instances=10, 10, 2 OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP OTSi Supported Transitions=(OTSi,ODU4),(ODU4,ODU2) OR NodeRuleGroup RuleType: FORWARDING NEP OTSi (int), ODU2 (int.)

Internal Multi-layer NEP Pool  Transitional Link (1/5) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 ODU OTSi Transitional Link Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi OTSi TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi,ODU4 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1

Internal Multi-layer NEP Pool  Transitional Link (2/5) ODU2 ODU2 ODU ODU4 ODU ODU4 ODU4 ODU4 ODU ODU ODU OTSi ODU ODU OTSi OTSi Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 ODU OTSi OTSi OTSi Transitional Link Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi,ODU4 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

Internal Multi-layer NEP Pool  Transitional Link (3/5) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi Transitional Link OTSi OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Internal Multi-layer NEP Pool  Transitional Link (4/5) ODU2 OTSi ODU4 ODU ODU2 ODU ODU4 ODU ODU OTSi ODU OTSi Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi OTSi Transitional Link OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Internal Multi-layer NEP Pool  Transitional Link (5/5) ODU2 ODU2 ODU ODU4 ODU In this case the NEP Pool is not internal NEP, rather is a NNI NEP. ODU4 ODU ODU ODU ODU OTSi OTSi Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi OTSi OTSi Transitional Link OTSi OTSi Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=no Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2

Some detailed examples

1) From 40G DSR to ODU4 to OTSi to OMS No Transitional Links Max of 8x40GigE Services 40GigE 40GigE DSR DSR Transponder / ODU & OTSi switch Node Fixed/No flexibility DSR&ODU2/3 ODU3 ODU3 ODU Fixed/No flexibility OTSi&ODU4 Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 ODU4 ODU4 ODU ROADM Node Fixed/No flexibility OMS & OTSiMC NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3) ODU OTSiG-O OTSiA OTSiMC Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 OTSi 1:1 OTSiA OTSiMC OTSi OTSi Link OTSiMC OTSiMC Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 OMS-O OTSiMC 1 OMS Link OMS NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) Pool = yes Layer=OTSiMC (TTP rate) Total Capacity=400G Supported CTP Rates= OTSiMC Max # TTP instances=4 Max # CTP per TTP instances=1 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 Each NEP Pool has a SIP, hence ODU4 ConnectivityService, OTSi ConnectivityService, OTSiMC ConnectivityService can be provisioned. NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSiMC Server NEP OMS Supported Transitions=(OMS OTSiMC) Layer=OMS Total Capacity=4000G Supported CTP Rates= OTSiMC Max # CTP instances=40

Transponder / ODU & OTSi switch Node 2) From 40G DSR to ODU4 to OTSi to OMS No Transitional Links OTSi flexibility also on transponder side 40GigE 40GigE Fixed/No flexibility DSR&ODU2/3 Transponder / ODU & OTSi switch Node DSR DSR ODU3 ODU3 ODU ODU4 ODU4 Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 ODU OTSiG-O OTSiA ROADM Node Fixed/No flexibility OMS & OTSiMC ODU 1:1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3) OTSiA OTSiMC OMS 1 OMS-O OTSiMC OTS OTSi OTSi OTSi Link OTSiMC OTSi OTSiMC Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Pool = yes Layer=OTSiMC (TTP rate) Total Capacity=400G Supported CTP Rates= OTSiMC Max # TTP instances=4 Max # CTP per TTP instances=1 OTS Link NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) NodeRuleGroup RuleType: FORWARDING NEP OTSi, NEP OTSi NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSiMC Server NEP OMS Supported Transitions=(OTS,OMS),(OMS,OTSiMC) Layer=OTS Total Capacity=4000G Supported CTP Rates= OTSiMC Max # CTP instances=40

3) From 2.5G ETH to ODU1 to ODU2 to ODU4 to OTSi to OMS No Transitional Links Ethernet Bridge and ODU switch Node Max of 10x2.5G Services Cannot be ODU2e, ODU3, because in this example there is ODU1/0 step ETH ETH ETH ETH ODU1 ODU1 ODU1 Layer=ETH Total Capacity=2.5G Supported CTP Rates= 1G to 2.5G Max # CTP instances=1 ODU Link ODU Transponder / ODU & OTSi switch Node ODU2 ODU2 ODU NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ETH Server NEP ODU1 Supported Transitions=(ETH,ODU1) ODU Pool = yes Layer=ODU1 (TTP rate) Total Capacity=25G Supported CTP Rates= ODU1 Max # TTP instances=10 Max # CTP per TTP instances=1 ODU4 ODU4 ODU ODU OTSiG-O Pool = yes Layer=ODU1 (TTP rate) Total Capacity=25G Supported CTP Rates= ETH Max # TTP instances=10 Max # CTP per TTP instances=1 OTSiA OTSi ODU Pool = yes Layer=ODU2 (TTP rate) Total Capacity=30G Supported CTP Rates= ODU0, ODU1 Max # TTP instances=3 Max # CTP per TTP instances=8, 4 OTSiA 1:1 OTSi OTSi Link OTSi NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU1 Server NEP ODU2 Supported Transitions=(ODU2,ODU1) Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Layer=OTSi Total Capacity=100G Supported CTP Rates= ODU4 Max # CTP instances=1 NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU2 Server NEP ODU4 Supported Transitions= (ODU4,ODU2) Each NEP Pool has a SIP, hence ODU1 ConnectivityService, ODU2 ConnectivityService, ODU4 ConnectivityService, OTSi ConnectivityService can be provisioned. NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP ODU4 Server NEP OTSi Supported Transitions=(OTSi,ODU4) Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= ODU4 Max # TTP instances=4 Max # CTP per TTP instances=1

4) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS Fixed/No flexibility DSR&ODU2/3 Transponder / ODU switch Node Transponder / OTSi switch Node ODU3 40GigE 40GigE ODU DSR DSR ODU4 ODU4 ODU3 ROADM Node ODU OTSi OTSiMC Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 OTSi OTSiMC OTSi Link OTSi OTSiMC OTSi OTSiMC ODU Transitional Link NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3) OMS-O OTSi 1 OMS Link OMS Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Layer=OTSiMC Total Capacity=100G Supported CTP Rates= OTSiMC Max # CTP instances=1 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Layer=OMS Total Capacity=400G Supported CTP Rates= OTSiMC Max # CTP instances=4 NodeRuleGroup RuleType: FORWARDING NEP OTSi, NEP OTSi NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSiMC Server NEP OMS Supported Transitions=(OMS, OTSiMC) TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=OTSi, ODU4

5) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS Fixed/No flexibility DSR&ODU2/3 Transponder / ODU switch Node Transponder / OTSi switch Node ODU3 40GigE 40GigE ODU DSR DSR ODU4 ODU4 ODU3 ROADM Node ODU OTSiMC Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 OTSi OTSiMC OTSi Link OTSi OTSiMC OTSi OTSiMC ODU Transitional Link NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3) OMS-O OTSi 1 OMS Link OMS Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Layer=OTSiMC Total Capacity=100G Supported CTP Rates= OTSiMC Max # CTP instances=1 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Layer=OMS Total Capacity=400G Supported CTP Rates= OTSiMC Max # CTP instances=4 NodeRuleGroup RuleType: FORWARDING NEP OTSi, NEP OTSi NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSiMC Server NEP OMS Supported Transitions=(OMS, OTSiMC) TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=ODU4

6) DSR/ODU Node OTSi Node Photonic Node OTSi CS ODU4 CS DSR CS Fixed/No flexibility DSR&ODU2/3 Transponder / ODU switch Node Transponder / OTSi switch Node ODU3 40GigE 40GigE ODU DSR DSR ODU4 ODU3 ROADM Node ODU OTSiMC Layer=DSR Total Capacity=40G Supported CTP Rates= 10GigE, FC-1200, 40GigE Max # CTP instances=1,1,1 OTSi OTSiMC OTSi Link OTSi OTSiMC OTSi OTSiMC ODU Transitional Link NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP DSR Server NEP ODU4 Supported Transitions= (10GigE,ODU2),(FC-1200,ODU2e), (40GigE,ODU3) (ODU4,ODU2),(ODU4,ODU2e),(ODU4,ODU3) OMS-O OTSi 1 OMS Link OMS Pool = yes Layer=OTSi (TTP rate) Total Capacity=400G Supported CTP Rates= OTSi Max # TTP instances=4 Max # CTP per TTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Layer=OTSiMC Total Capacity=100G Supported CTP Rates= OTSiMC Max # CTP instances=1 Layer=OTSi Total Capacity=100G Supported CTP Rates= OTSi Max # CTP instances=1 Pool = yes Layer=ODU4 (TTP rate) Total Capacity=400G Supported CTP Rates= ODU2, ODU2e, ODU3 Max # TTP instances=4 Max # CTP per TTP instances=10, 10, 2 Layer=OMS Total Capacity=400G Supported CTP Rates= OTSiMC Max # CTP instances=4 NodeRuleGroup RuleType: FORWARDING NEP OTSi, NEP OTSi NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSi Server NEP OMS Supported Transitions=(OMS, OTSi) NodeRuleGroup RuleType: LAYER_TRANSITION Client NEP OTSiMC Server NEP OMS Supported Transitions=(OMS, OTSiMC) TransitionalLink NEP ODU, OTSi Supported Transitions=(OTSi,ODU4) Supported Flexibility=no